A271342 - cp's OEIS frontend

A271342 Sum of all even divisors of all positive integers <= n.

n	a(n)
1	0
2	2
3	2
4	8
5	8
6	16
7	16
8	30
9	30
10	42
11	42
12	66
13	66
14	82
15	82
16	112
17	112
18	138
19	138
20	174
21	174
22	198
23	198
24	254
25	254
26	282
27	282
28	330
29	330
30	378
31	378
32	440
33	440
34	476
35	476
36	554
37	554
38	594
39	594
40	678
41	678
42	742
43	742
44	814
45	814
46	862
47	862
48	982
49	982
50	1044
51	1044
52	1128
53	1128
54	1208
55	1208
56	1320
57	1320
58	1380
59	1380
60	1524
61	1524
62	1588
63	1588
64	1714
65	1714

[0, 2, 2, 8, 8, 16, 16, 30, 30, 42, 42, 66, 66, 82, 82, 112, 112, 138, 138, 174, 174, 198, 198, 254, 254, 282, 282, 330, 330, 378, 378, 440, 440, 476, 476, 554, 554, 594, 594, 678, 678, 742, 742, 814, 814, 862, 862, 982, 982, 1044, 1044, 1128, 1128, 1208, 1208, 1320, 1320, 1380, 1380, 1524, 1524, 1588, 1588, 1714, 1714]

cp's OEIS Frontend

A271342 Sum of all even divisors of all positive integers <= n.

Table of values

List of values